Kasami, 21, who made his full international debut earlier this month, has cemented his spot in the Fulham side after a spell out on loan last campaign, with his exploits attracting the attention of Juventus .

Jol said: “Kasami started well here but had a lot to learn and that’s exactly what he did.

“He’s a perfectionist, so he’s always very disappointed in himself. I always tell him ‘you’re not Maradona’.

“I taught him not to fight perfectionism because I was the same when I played.

“He’s a very good boy. He doesn’t drink and does all of the right things. He broke all of the records a couple of weeks ago in the Premier League with his high intensity sprints, covering the ground.

“He’s willing to give everything, which for me is the main priority for young players.”

The Macedonia-born midfielder has made 10 league starts for the Cottagers since his move from Italian outfit Palermo in 2011.

He featured just three times last season, but a successful stint at Swiss side Lucerne paved the way to the Fulham first team.

Jol, whose men travel to Southampton today, added: “Kyle Walker and Andros Townsend played for other clubs then came back and did well. Townsend makes things happen for his team, and Kasami’s the same.”